[asterisk-users] Migrating asterisk 11 to 13: some callers get no ringback tone any more

[Joshua Colp]

Eric Wieling wrote:
> I don't know the default setting for progressinband in the code, but it
> is documented in Asterisk 11's sip.conf.sample as defaulting to never.
> Maybe the docs were fixed since Asterisk 11.

The behavior change to actually do what the option was documented to do. 
As part of that the default was changed to reflect the past behavior, 
thus why it was changed to no. The commit itself:

chan_sip: make progressinband default to no

After the "progressinband" value setting of "never" was updated to never 
send a 183 this separated its use from the "no" value. Since "never" was 
the default, but most users probably expect "no" this patch updates the 
default for the "progressinband" setting to "no."

This was tracked under ASTERISK-24835[1].

[1] https://issues.asterisk.org/jira/browse/ASTERISK-24835

-- 
Joshua Colp
Digium, Inc. | Senior Software Developer
445 Jan Davis Drive NW - Huntsville, AL 35806 - US
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